One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6)(7,14)(8,12)(9,18)(10,13)(11,16)(15,20)(17,19)(21,22,27,23,26,29,25,30)(24,28,34,31,33,36,35,32)(5,7)(6,11)(8,15)(9,17)(10,16)(12,19)(13,14)(18,20)(21,23,27,29,26,30,25,22)(24,32,34,28,33,31,35,36)(1,2,3,4)(5,8,10,9)(6,12,13,18)(7,15,16,17)(11,19,14,20)(21,24,26,33)(22,28,29,36)(23,31,30,32)(25,35,27,34)(7,16)(11,14)(15,17)(19,20)(22,29)(23,30)(24,33)(34,35) involution — undirected(5,9,10,8)(6,12,13,18)(7,17,16,15)(11,19,14,20)(21,25,26,27)(22,30,29,23)(24,34,33,35)(28,31,36,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.